1.Carry the smart key into the vehicle.
2.Make sure the parking brake is firmly applied.
3.Place the shift lever in the P(Park) position.
In N (neutral) position, you can not start the vehicle.
4.Depress the brake pedal.
5.Press the engine start/stop button or turn the ignition switch to the ON position.
6.The engine should be started without pressing the accelerator. In extremely cold weather or after the vehicle has not been operated for several days, let the engine warm up without depressing the accelerator.
If the starting procedure is followed, the "READY" symbol on the instrument cluster will turn on. For more details, Please check chapter 6.
Kia Niro 2017 (DE HEV) Service Manual: Side Airbag (SAB) Module Components and components location
Components
1. Side Air Bag (SAB)
...
Kia Niro 2017 (DE HEV) Service Manual: Lane Keeping Assist System (LKAS) Unit Repair procedures
Removal
When replacing the LKAS switch, check that the symbol mark in the cluster
operates normally by pressing the ON/OFF switch.
1.
Disconnect the negative (-) battery terminal. ...